Archived posting to the Leica Users Group, 1997/11/16

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Subject: Re: Film & X-Ray machines
From: "Art Searle" <w2nra@erols.com>
Date: Sun, 16 Nov 1997 11:17:33 -0500

Hi Steven,

You wrote:
>what asa were you rating the tri-x at?

If the reason for your question is related to the subject, the affect on
airport security X-Ray machines on film, the ISO film speed that it is
exposed at has no bearing on potential fogging.  It is the actual
sensitivity of the film that is directly related to this potential.  The
higher the actual ISO film speed the greater the potential.  But I asume you
knew this.

Art